Home / 20,733.92-31,112.08-19,246.40

Finding the Fourth Proportional to 20,733.92, 31,112.08 and 19,246.40

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Solution

The fourth proportional to 20,733.92, 31,112.08 and 19,246.40 is: 28,880.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.92 : 31,112.08 = 19,246.40 : x
  2. Step 2: Convert to fraction form
    20,733.92/31,112.08 = 19,246.40/x
  3. Step 3: Cross multiply
    20,733.92x = 31,112.08 × 19,246.40
  4. Step 4: Simplify right side
    20,733.92x = 598,795,536.51
  5. Step 5: Solve for x
    x = 598,795,536.51/20,733.92
  6. Step 6: Final answer
    x = 28,880.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.